baber/WOPTO huggingface dataset:
Patent GB-543176-A (GB)
Title: Improvements in or relating to windings for induction machines
IPC: H02K17/18
Filed: 1938-09-14
Abstract: 543,176. Induction machines. KAUDERS, V. Sept. 14, 1938, No. 26870. Convention date, Sept. 14, 1937. [Class 35]  In an armature winding for induction machines having its bars in a single core so that some have higher impedance than others, high and low-impedance bars are connected in series to form short-circuited coils, the number of coils being such that there are two bars per slot in at least some of the slots. The invention is described in connection with machines of the type comprised in Specification 474,258 in which double core armatures are used, Fig. 2, corresponding to Fig. 5 of the prior Specification but having a single rotor core 12 and with the highimpedance conductors 9, 10 placed in slots below and between those of the low-impedance conductors 1, 2, 3 ... 6. The low-impedance conductors are connected together into loops of pitch ya by means of a ring 7 and the high-impedance bars, which have pitches y, and y, with respect to the two sides of the closed loops are brought back through the core to the same ring or to a second ring at the same end of the core. The pitches y 2 , y 1  should not deviate much from the pole-pitch or an odd multiple thereof. Fig. 4 (corresponding to Fig. 11 of the prior Specifications) shows a form in which pairs of highimpedance bars 1B, 3B are directly connected to the bars 1A, 2A ... of the closed low-impedance loops and are led back through separated slots to the common short-circuiting ring 71, each with a high-impedance bar of another pair. The ring or rings 71 may be eliminated by connecting the return ends of the high-impedance bars directly to the left-hands of the bars 1A, 2A and similarly for the whole winding (Fig. 5, not shown). The resistance of the bars in a slot may be reduced by metallically connecting them together in pairs along a pre-determined portion or the whole of their length, as described in the prior Specification.
Patent GB-463438-A (GB)
Title: Recovery of sulphur
IPC: C01B17/06
Filed: 1935-09-28
Abstract: <PICT:0463438/III/1> Sulphur is obtained by oxidizing iron sulphide in the form of a molten bath to form iron oxide and gases containing sulphur dioxide which are withdrawn from the oxidizing-chamber and passed into contact with pyrites to distil off the volatile sulphur, the iron sulphide remaining being then oxidized as above.  The treatment of the pyrites with the gases containing sulphur dioxide may be so controlled as to reduce some or all of such sulphur dioxide to sulphur.  In the apparatus shown, pyrites in lump form is introduced on to grate 54 in distillation chamber 12 from a hopper 50, and is there treated with the hot gases from the oxidizing-chambers introduced through tuy<\>geres 56.  The gases containing sulphur pass through dust collector 15 to a sulphur condenser 16 preferably maintains at 115--150 DEG  C., final traces of sulphur being removed in an electrical precipitator 19.  The solid product, consisting mainly of iron monosulphide together with some oxide, is obtained in relatively finely divided form and is passed via conveyer 20 to the molten bath oxidizing-chambers 10 and 11. Oxidation of the charge is effected by air blown in through tuy<\>geres 30 and 31.  Iron sulphide may be introduced into the chambers 10 and 11 over an extended period until they are full and when the oxygen content of the gases leaving a chamber increases, such gases are passed in series through another chamber containing a charge of higher sulphur content, or preferably the operation of the chambers is staggered so that they are charged and tapped at different times, thus permitting continuous operation.  The oxidation is carried out to produce a gaseous product having a temperature preferably in excess of 1000--1200 DEG  C. and preferably containing not more than one per cent of free oxygen.  The hot gases are then passed through heat exchangers 13 and 14 where they preheat the air required for the oxidation of the sulphide, and thence to the distillation chamber 12.  In an alternative method of operation, the pyrites in finely divided form, preferably minus 40 mesh, is treated in suspension in the hot gases from the oxidation operation.
Patent GB-862923-A (GB)
Title: Apparatus for the treatment of mixtures of solid and liquid substances
IPC: B01F13/10
Filed: 1957-08-26
Abstract: 862,923. Mixing. FILMFABRIC AGFA WOLFEN VEB. Aug. 26, 1957 [Sept. 28, 1956], No. 26903/57. Class 86 An apparatus for mixing a solid with a liquid has a rotor 3, Fig. 1, mounted with its surface adjacent to a housing, the cooperating surface of which is provided with inlet 1, Fig. 2, and outlet 2 cells, so that the materials enter the former, are carried round by the rotor across the intervening wall, to an outlet cell 2. To assist in disintegration of the solid matter, the face of the rotor may be provided with longitudinal grooves 6 of saw-tooth crosssection. The inlet and outlet cells may equally well be placed on the rotor instead of the housing and if they are arranged radially, as in Fig. 3 (not shown), co-operating flat surfaces can be mounted adjacent each face, so that the materials enter at the centre and pass outwardly to the periphery in the course of mixing.
Patent GB-721420-A (GB)
Title: Improvements relating to the production of substantially uniform weight charges of apowder of slightly non-uniform density
Inventor: STIRN FRANK EDWIN
IPC: B01J2/22
Filed: 1952-10-27
Abstract: 721,420. Packaging. AMERICAN CYANAMID CO. Oct. 27, 1952, No. 26906/52. Drawings to Specification. Class 94 (1). A method of producing substantially uniform weight changes of a powder of slightly non- uniform density comprises compacting charges of the powder into uniform size measuring chambers having foraminous wall areas by the operation through said areas of a vacuum which is adjusted in accordance with variations in the powder density, so that charges of substantially uniform weight' are compacted into the chambers. The vacuum pressure necessary for a particular powder is ascertained from a calibration curve relating the weight of a powder charge in a measuring chamber with the vacuum pressure. Specifications 680,126 and 695,665, [both in Group V], are referred to.
Patent GB-162233-A (GB)
Title: An improved kettle
IPC: A47J27/21
Filed: 1920-09-22
Abstract: 162,233. Bate, J. Sept. 22, 1920. Heating-surfaces, increasing.-A lidless kettle with a dome-shaped top and recessed bottom is provided with a steam outlet pipe e which passes through the handle.
Patent GB-783970-A (GB)
Title: Gaseous fluid turbines
Inventor: BARLOW BENJAMIN WILLIAM
IPC: F01D9/06
Filed: 1954-09-17
Abstract: 783,970. Turbines. NAPIER & SON, Ltd., D. Aug. 9, 1955 [Sept. 17, 1954], No. 27051/54. Class 110 (3). [Also in Group XXXIV] A turbine rotor bearing mounted in a housing surrounded by an annular passage and having the housing supported from the outer circumferential wall of the annular passage by at least three radial supporting members secured at their inner ends to the housing and passing through guides rigid with the outer wall in which they can slide radially only has the outer ends of the supporting members connected to the outer wall by flexible diaphragms lying in planes normal to the lengths of the supporting members. The turbine rotor shaft D is supported by a ball bearing F mounted in a twopart housing F<SP>1</SP>, F<SP>2</SP>. The outer wall B<SP>1</SP> of the annular outlet passage B is connected to the turbine casing A and the bearing housing F<SP>1</SP> is supported from the outer wall B<SP>1</SP> by four tubular radial supports G. Each support G is screwed at one end into a boss F<SP>3</SP> formed on the housing F<SP>2</SP> and at the other end slides in a tubular screening member J which is rigidly mounted in a boss H forming part of the wall B<SP>1</SP>. The member J extends across the outlet passage B and screens the support G from the heat of the gases. Each of the bosses H is surrounded by an annular wall H<SP>1</SP> to which is secured the edge of a flexible diaphragm G<SP>2</SP> the centre of which is secured to the wall of a chamber K which is rigidly attached to the support G. The flexibility of the diaphragm allows for free radial expansion of the support. Cooling air is admitted to the chamber K through the passage K<SP>1</SP> and from the chamber passes through the support G to a chamber L. From the chamber L cooling air is supplied to the bearings and the chamber enclosing the disc D<SP>1</SP>. Some of this cooling air may pass through the shaft D to cool other discs. This air may be used to apply air pressure to one face or more of the discs to balance the axial thrust on the turbine blades. Reference has been directed by the Comptroller to Specifccation 623,615.
Patent GB-825144-A (GB)
Title: Improvements in apparatus for cutting metal workpieces by electro-erosion
IPC: B23Q15/013
Filed: 1956-09-05
Abstract: 825,144. Cutting by spark discharge. VYZKUMNY USTAV PRE MECHANIZACIU A AUTOMATIZACIU. Sept. 5, 1956 [Sept. 15, 1955], No. 27161/56. Class 83 (4). [Also in Group XXXV] An electro-erosion apparatus comprises a cutting electrode I which is pressed towards the workpiece O to be cut by a force produced by an electromagnetic system B, T connected in parallel with the arc gap A. Current is supplied to the electrode and workpiece through a variable resistance R from a direct-current generator G having a sloping characteristic. The electromagnet comprises a fixed coil B, Fig. 2, and a moving coil T connected to the tool holder V; alternatively the moving coil may be connected to the workpiece. Both coils are connected in parallel with the spark gap, Fig. 1, the coil T being in series with a variable resistance P. When the current is switched on, the electromagnet pushes the saw electrode into contact with the workpiece but immediately the arc A is established, the voltage of the generator G drops thereby reducing the current passing through the coils B, T and reducing the force on the electrode to that required for correct operation. A spring Z biases the electrode away from the workpiece and if a short circuit occurs across the arc, the generator voltage drops which reduces the force on the electromagnets whereby the spring Z pulls the electrode away from the workpiece. The electrode may comprise a rotating disc or an endless moving band or wire. Instead of the spring Z, gravity or a pressure medium may be used.
Patent GB-820452-A (GB)
Title: Improvements relating to the catalytic reforming of petroleum hydrocarbons
IPC: C10G35/06
Filed: 1956-09-05
Abstract: Catalytic reformates are upgraded by treatment at 450-580 DEG  C and not more than 50 p.s.i.g. with a catalyst of chromium oxide on a zinc aluminate support of formula ZnAl2O4, there being no addition of hydrogen whether extraneous or recycled.  The catalyst is preferably promoted by a rare earth and an alkali metal each preferably present as the oxide and may contain 5-25% chromium oxide, 0.1-5% rare earth oxide, the promoters, for example, being potassium and cerium.  Space velocities of 0.1-1.0 vol./vol./hr. are preferred.  The higher boiling end of a catalytic reformate which is not susceptible to further upgrading may be removed by distillation and only a lower boiling fraction, e.g. a substantial proportion of which boils below 100 DEG  C. is treated.  Alternatively, a raffinate from a solvent extraction only may be treated.  In an example, a fraction boiling up to 108 DEG  C. and research octane number 76.1 of a platinum reformate is treated at atmospheric pressure, 0.2 vol./vol./hr. and 530 DEG  C. over a catalyst of 10% chromia, 1% ceria and 1% potassium oxide on zinc aluminate to give in 65 weight % yield a product of research octane number 99.2.  Specification 820,403 is referred to.
Patent GB-1142299-A (GB)
Title: Azo dye
Inventor: LANGE GUENTER
IPC: C09B29/08
Filed: 1966-06-17
Abstract: 1,142,299. Monoazo dye. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 June, 1966 [18 June, 1965], No. 27165/66. Heading C4P. The invention comprises the monoazo dye of formula which is prepared by coupling diazotized 2- amino-3-bromo-5-nitro-benzonitrile with N,N- dihydroxyethyl - m - chloroaniline. The dye gives violet-red shades in cellulose ester textile materials.
Patent GB-925567-A (GB)
Title: Improvements in and relating to lysine nicotinate and its therapeutic applications
IPC: C07D213/80
Filed: 1961-07-27
Abstract: The invention comprises lysine nicotinate having the formula: <FORM:0925567/IV(a)/1> and a therapeutic composition thereof having hypocholesterolemia inducing properties and vaso-dilating properties. Such compositions are administered orally as tablets, by injection or in the form of suppositories.
Patent GB-464902-A (GB)
Title: A process for determining the excess amount of oxidising agent in chemically purified water
IPC: C02F1/72
Filed: 1936-10-09
Abstract: <PICT:0464902/III/1> In determining the excess amount of oxidizing agent in chemically purified water comparison is made of the potentials of two identical couples 3, 7, immersed respectively in the liquid to be tested and in a byepassed portion from which the excess oxygen has been eliminated in a purifier 5.  The couples may be connected as shown in opposition in a circuit comprising a resistance 13 and milliammeter 15, or they may be connected in a Wheatstone bridge in which they are both in opposition to a constant source of potential.  In a third modification they are placed in independent circuits which are alternately connected to a common recorder on which they produce separate curves.
Patent GB-281455-A (GB)
Title: Improvements relating to pneumatic tyres
IPC: B60C9/00
Filed: 1926-11-03
Abstract: 281,455. Waterfield, G. C. Nov. 3, 1926. Jackets and covers.-The texile formation of a tyre cover comprises straight-cut cord fabric between layers of opposite bias, the layers being applied successively to a shaped mandrel and secureed to one another by adhesion only. Each layer may comprise more than one ply; and more than one such composite structure may be built up in a cover. Specification 28872/13 is referred to.
Patent GB-934690-A (GB)
Title: Synthetic lubricants
IPC: C07C69/34
Filed: 1960-08-09
Abstract: A lubricating composition consists of (a) a base oil of viscosity 1-30 cs at 210 DEG F., a neutralization value not greater than 1 m.g. KOH/g and consisting of one or more polyesters which may be mixed (defined) having at least two ester linkages per molecule and having been made from (1) a mono- and/or polyhydric C5-15 alcohol and having no hydrogens on any carbon in the 2-position relative to any -OH group and (2) a mono- and/or polycarboxylic C2-14 acid and (b) 0,1 to 5% by weight of a dimorpholinyl aryl methane, the aryl group (which may be substituted with alkyl groups) containing, in either case, 6 to 25 carbons.  Specified alcohols are 2,2,4,trimethyl pentanol, neopentyl, alcohol and glycol, trimethylol propane, pentaerythritol and dipentaerythritol whilst the acids are pelargonic, proprionic, enanthic, caprylic, capric, sebacic, adipic and tricarballylic.
Patent GB-444765-A (GB)
Title: Improvements in or relating to variable speed transmission mechanism
IPC: F16H33/08
Filed: 1934-09-26
Abstract: 444,765. Variable - speed gearing. SMITH, H. J., 277, Broadway, New York, U.S.A.-(Assignee of Zingaro, P. W. ; 3225, Olinville Avenue, New York, U.S.A.) Sept. 26, 1934, No. 27641. Convention date, Oct. 27, 1933. [Class 80 (ii)] A variable - speed gear acting by inertia comprises flywheels M, N, Fig. 1, loose on driving and driven shafts A, B, respectively. Interengaging planets M<1>, M<2> carried by the flywheel M mesh respectively with a sun gear A<1> fast on the shaft A and with an internal ring B<1> fast on the shaft B. Interengaging planets N<1>, N2 carried by the flywheel N mesh respectively with a sun gear B<2> fast on the shaft B and with an internal ring M<3> secured to the flywheel M. The flywheel M is rotated in part by power transmitted back from the shaft B to the ring M<3>. The flywheel N is formed with a peripheral rib N<3> and associated therewith is a one-way brake H which prevents the wheel N from rotating backwards when the transmission is starting up. The rib N<3> is also formed with notches N<4> with which a spring pawl I, Fig. 3, is allowed to engage to stop that wheel resiliently and so effect a low-speed drive of definite ratio. The gear train shown on the left of Fig. 1, is a conventional reversing-gear. A one-way ball clutch S under manual control is provided by which free-wheeling is obtainable when desired. An auxiliary electric motor is described with reference to Figs. 4 and 5 (not shown), which can be swung into action when required to drive the flywheel N. Auxiliary eddy-current clutching means are described with reference to Figs. 6 and 7 (not shown), for clutching the flywheels M, N elastically together. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the flywheel N and the gear train B<2>, N<1>, N<2>. M<3> are omitted. This subjectmatter does not appear in the Specification as accepted.
Patent GB-704916-A (GB)
Title: Improvements in or relating to closure caps
IPC: B65D41/04
Filed: 1951-11-26
Abstract: 704,916. Closure caps. MERRIOTT MOULDINGS, Ltd., and WHEWAY, J. G. Nov 5; 1952 [Nov. 26, 1951], No. 27.664/51. Class 125 (3) A screw cap 10, for bottles &c. moulded from synthetic plastic and having a sealing wad 13 between the end wall and the thread has a moulded interrupted-single start screw thread 11 the interruptions facilitating insertion of the wad. Axial knurling 12 gives added grip on the wad 13.
Patent GB-1508850-A (GB)
Title: Copper base alloys and process
IPC: C22F1/08
Filed: 1975-07-01
Abstract: 1508850 Wrought copper based-alloy OLIN CORP 1 July 1975 [11 July 1974(2) 18 Dec 1974] 27710/75 Heading C7A [Also in Division B3] A wrought copper based alloy containing at above 1150‹C by the Durrille or DC process and hot worked at 850-975‹C, finishing above 550‹C. The hot worked alloy is cold worked at least 20%, preferably 40-70% and recrystallized annealed at 300-850‹C, preferably 650-750‹C to give a fine ground structure with a grain size below 0À025 mu. Further cold work and ageing cycles at 300- 550‹C, preferably 400‹C gives a structure with a fine grain, dispersed magnetic phase containing Fe and/or Co, and the alloy has a good combination of strength, bend properties, good shelf life, solderability and low content resistance.
Patent GB-388337-A (GB)
Title: Improvements in or relating to beaters for beater mills
IPC: B02C13/28
Filed: 1932-10-06
Abstract: 388,337. Impact pulverizers. ALLGEMEINE ELEKTRICITATS-GES., 2, Friedrich Karl-Ufer, Berlin. Oct. 6, 1932, No. 27813. Convention date, March 2. [Class 59.] In a pulverizing-mill of the kind wherein the beaters are trough-shaped, open in the direction of rotation, and with the outer wall which extends in the direction of the pulverizing path being approximately at right-angles to the radius passing through the axis of the pulverizing path, the rear wall a of each trough-shaped beater 2 forms with the radius and angle x leading in the direction of rotation. This angle varies between 50-70‹ at the usual speed of the machine and ensures a laver of coal &c. 4 being retained over the whole of the trough to form the impact surface. The beaters may be separate pieces of metal welded together.
Patent GB-688077-A (GB)
Title: Improvements in or relating to sliding sash windows
Inventor: KELLEY RICHARD GEORGE EDWIN
IPC: E06B3/50
Filed: 1950-11-15
Abstract: 688,077. Pivoted-sliding windows SHARP BROS. & KNIGHT, Ltd. Nov. 15, 1951 [Nov. 15, 1950], No. 27897/50. Class 20(iii) Two vertically sliding sashes 1, 2, balance one another by means of a cord, wire or chain &c. 20 secured at each side to the bottom of each sash and passing over a pulley 21 mounted on the jamb of the frame at a point permitting the sashes completely to overlap; guide pins on the sashes engage grooves with offset or inwardly inclined portions in the iambs or vice versa. In the form shown, grooves 8 engaged by pins 17, 18, of the lower sash have an offset por-' tion at the top to cause the top rail 11 of the rising sash to move inwardly out of the path of the top rail 14 of the upper sash or the grooves may be slightly inclined for this purpose. The upper pins 16, 18 of each sash comprise retractable bolts which when disengaged from the jamb grooves permit the sashes to tilt inwardly on the lower pins. The upper sash has a tongue on each style engaging a recess in the outside lining of the jamb and the lower sash a tongue engaging a rebate in the jamb itself, or the inner sash may have an angle or channel member engaging a groove in the jamb. The sashes may be mounted so as to pivot about their upper pins, the cords being fixed to the tops of the sashes and the pulleys located near the top of the jambs. The sashes may be supported in tilted position by a cord terminating in a spring hook located when not in use at the centre of the upper rail of the frame. In another form the jamb grooves lead to an opening on the inner face of the jamb fixed pins replacing the bolts on the sashes. To stop the lower sash on reaching its maximum height a pivotal stop of gravity tvpe may be mounted in one or both jambs. The lower pins may take the form of hollow T pieces through which the cord is passed into a groove in the sash and nailed in position.
Patent GB-335725-A (GB)
Title: Improvements in or relating to chains
IPC: F16G13/14
Filed: 1929-09-14
Abstract: 335,725. Green, G. H., and Economic Windings Co., Ltd. Sept. 14, 1929. Driving-chains without separate joint pins; wire-link chains.-Links for chains consisting of links detachable from each other by sliding la,terally relatively to the chain are formed by bending a piece of wire or rod into the shape of the link including a hook for attachment to the next link. The Figure shows the stages by which a U-shaped piece of wire is bent into a square link having a hook a<2> forming a bearing to embrace the end of the next link and detachable therefrom by sliding through notches a<4> in the sides of that link. In forming the hook the ends of the wire are pressed into shape round a pin or bar a<9>, the pressure increasing the tensile strength of the metal. Cams for actuating portions of knitting &c. machinery may be formed by bending the sides of the links or may be welded thereto.
Patent GB-503687-A (GB)
Title: Improvements in or relating to pose or image observing devices
IPC: A47G1/04
Filed: 1937-10-14
Abstract: 503,687. Mirrors combined with seats; MIRAFLEX, Ltd. Oct. 14, 1937, No. 27974. Convention date, Oct. 14, 1936. [Classes 52 (iii) and 52 (iv)] A mirror 4 is movable in regard to a fixed mirror 32 and is carried by an arm 8 swinging about a vertical axis 2, the mirror at the same time rotating on a vertical axis 10 on the arm. The arm may be mounted on a seat 1 as shown or carried by an overhead bracket and can be manually operated by a hand wheel 50 or by gearing actuated by a handle 31 or, alternatively, electrically operated motive means may be used.